DELL Precision T3500 GPU

[johnmeyer1]

Hello - I have a DELL Precision T3500 that I am installing a new GPU into. The GPU has an 8-pin out power cable included that splits into two 6-pin connectors. I have the 525W PS, so I only have one unused 6-pin that I connected to one of the 6-pins that splits from the GPU. The card only draws 120W max, so I'm sure it's fine, but could you please educate me?

1. Someone on this thread said these 16X PCIe slots can supply over 200W, so by comparison how much can the single spare 6-pin PS connector provide?
2. Does it matter if I connect the 6-pin at all, or what is optimal? If connected, how much power would the GPU draw from the PCIe slot vs. the PS 6-pin direct connect and how does it prioritize?

Thanks!!

 

[tennis2]

Can you please just tell us what model GPU you're installing. Manufacturer would also help.

1) the x16 slot is rated for 75W. Most GPUs that need extra power inputs use that 75W also.

2) 8 to 2x6 sounds strange on the GPU. Or are you describing an extra short cable that came with the GPU?

3) you need to connect external power to any GPU that has/ needs it, otherwise you won't get a display.

I think you're looking for something like this

 

[johnmeyer1]

Can you please just tell us what model GPU you're installing. Manufacturer would also help.

1) the x16 slot is rated for 75W. Most GPUs that need extra power inputs use that 75W also.

2) 8 to 2x6 sounds strange on the GPU. Or are you describing an extra short cable that came with the GPU?

3) you need to connect external power to any GPU that has/ needs it, otherwise you won't get a display.

I think you're looking for something like this

tennis2, thanks for the quick response! I already upgraded my CPU to a W3690 which works perfect, and bought the ZOTAC GTX 1060 6GB GDDR5X which I thought would be a good match.

And yes, I am describing the extra short cable that came with the card. The 8-pin side connects to the card and is like the link you sent except it splits into two 6-pins instead of one. I only have one unused 6-pin from the PS, and I'm hoping that will be enough. Thanks for the help! The GPU I bought is here.

 

[tennis2]

You'll need the adapter I linked.
For whatever reason, that 2 pack is cheaper than most singles. Probably shipping and packaging is the majority of the cost for that $0.75 part.

 

[johnmeyer1]

You'll need the adapter I linked.
For whatever reason, that 2 pack is cheaper than most singles. Probably shipping and packaging is the majority of the cost for that $0.75 part.

Thanks tennis2, but as previously stated that adapter already came with the card, the only difference is it has an 8-pin on one end and splits to TWO 6-pins, vs. just ONE 6-pin on your adapter. So I get it, I plug one of the 6-pins into the spare 6-pin lead on my PS.

Now, my original question is how much power will that give me total? My understanding now is I'll get 75W from the PCIe slot, and 75W from the PS 6-pin lead. If that's correct, 150W should be plenty since it is a 120W max card. Is that correct and am I good to go?

And if so, why the 2nd 6-pin connector? If I had another 6-pin connector from the PS available (which I don't), that would be 225W total power? Why would they provide that as it seems unnecessary?

Thanks!

 

[william p]

A 120 W card can run off of a single 6 pin PCIe PSU cable. The 16X slot provides 75W and the 6 pin cable provides another 75W.
The 8 pin on the card is for a 150W. 8 pin cable. The adapter you have is for 2x 75W 6 pin to 150W 8 pin. None of this is needed to power a 120W card. But it might not run w/o it connected.
You need a differnet adapter for the PSU to go from 6 pin PCIe to 8 pin PCIe ( usually 6+2 connector). They both use the same 3x 12V. wires for power. as long as you don't go over 150W GPU you should be OK doing this. The T3500 is rated for a 150W GPU.